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Stolb23 [73]
4 years ago
8

A scientist is studying a new chemical he hopes will prevent insects from eating raspberry bushes. he sprays the chemical on a r

aspberry bush and places it with an unsprayed blackberry bush and some insects in a sealed room. He observes insects eating the blackberry bush, but not the raspberry bush. He concludes that the chemical works. This situation is an example of?
A. a controlled experiment
B. experiment bias
C. cultural bias
D. Skepticism
Biology
1 answer:
kondor19780726 [428]4 years ago
8 0

Answer:

The correct answer will be option-B.

Explanation:

A scientific experimental must be designed in a way that it could be able to test the predicted hypothesis.  

An experiment must divide the samples into two groups: the experimental design in which the independent variable will influence the dependent variable and the control group in which the variable to be tested is skipped and the independent variable does not influence the dependent variable.

Control group provides a reference to the experimental group, therefore, is considered important.

In the given question, since the scientist has concluded the results on the basis of his experimental groups only as it lacked a control group which could be used as reference therefore, leads to biased results on the basis of the experimental group.

Thus, Option-B is the correct answer.

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These disorders consist of serious, persistent problems that involve relationships, aggression, depression, and fears associated
mylen [45]

Answer:

C. Emotional and behavioral disorders

Explanation:

Emotional and behavioral disorders are often difficult to define, but it is defined as :

  • An inability to learn that cannot be explained by intellectual, sensory, or health factors.
  • An inability to build or maintain satisfactory interpersonal relationships with peers and teachers.
  • Inappropriate types of behaviors or feelings under normal circumstances.
  • A general pervasive mood of unhappiness or depression.
  • A tendency to develop physical symptoms related to fears associated with personal or school problems.

Hence , according to the scenario mentioned in the question, answer is C. Emotional and behavioral disorders.

8 0
4 years ago
Select ALL of the abiotic factors
nataly862011 [7]

Answer:

light

Explanation:

An abiotic factor is a non-living component in the environment. This can be either a chemical or physical presence. Abiotic factors fall into three basic categories: climatic, edaphic and social. Climatic factors include humidity, sunlight and factors involving the climate. Edaphic refers to soil conditions, so edaphic abiotic factors include soil and geography of the land. Social factors include how the land is being used and water resources in the area. Five common abiotic factors are atmosphere, chemical elements, sunlight/temperature, wind and water.

Temperature and Light



•••

Temperature of the air and water affect animals, plants and humans in ecosystems. A rise in temperature has the potential to change the way a living thing develops, because it changes the metabolic rate of the organism. All living organisms have a tolerance level for temperature range. For example, a human being would die if he stood out in minus 50 degree temperatures for any length of time. Light exposure often affects the temperature. Areas with direct sunlight are warmer

3 0
3 years ago
What is one reason it is necessary for humans to eat saturated fats
Anestetic [448]

one reason it is necessary for

humans to eat saturated fats is for protein

7 0
3 years ago
The flow of air caused by ____ and the Coriolis effect creates distinct wind patterns on Earth's surface. a. differences in heat
kakasveta [241]
<h3><u>Answer;</u></h3>

Differences in heating

The flow of air caused by <u>differences in heating </u>and the Coriolis effect creates distinct wind patterns on Earth's surface.

<h3><u>Explanation</u>;</h3>
  • <u>Movement of air or flow of air is caused by pressure or temperature differences and is experienced as wind.</u> When there is a pressure difference between two places, a pressure gradient exists, across which air moves from the region of high pressure to the region of low pressure.
  • <em><u>Differences in temperature also causes movement of air or wind know as convection. The air flow caused by temperature difference is observed in the case of sea and land breezes, because of the difference in temperature between the sea and the land.</u></em>
4 0
3 years ago
Read 2 more answers
Can someone help I am on a timer!!
salantis [7]
prophase (the first option from top)
5 0
3 years ago
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